传播为对象数组创建新对象[重复]答案

【问题标题】：Spread to create new object for array of object [duplicate]传播为对象数组创建新对象[重复]
【发布时间】：2021-07-23 09:48:34
【问题描述】：

我试图传播我的对象数组以创建一个新对象，但破坏了前一个对象

这就是我尝试传播数组的方式

const currentArraySlug = [
  {
    slug: "jagung-com", content_viewed: [1, 2], all_viewed: false
  }
]

const newSlug = {
  slug: "New slug",
  content_viewed: [],
  all_viewed: false
}

const mergeData = Object.assign({}, newSlug, ...(currentArraySlug))

console.log(mergeData);

这是我的预期输出

[
  {
    slug: "jagung-com",
    content_viewed: [1, 2],
    all_viewed: false
  },
  {
    slug: "New slug",
    content_viewed: [],
    all_viewed: false
  }
]

我该如何处理，提前谢谢

【问题讨论】：

const mergeData = currentArraySlug.concat(newSlug) ??
嗨@CertainPerformance 它工作，非常感谢你

标签： javascript arrays object

【解决方案1】：

另一种通过展开操作合并数据的方法如下

const currentArraySlug = [
  {
    slug: "jagung-com", content_viewed: [1, 2], all_viewed: false
  }
]

const newSlug = {
  slug: "New slug",
  content_viewed: [],
  all_viewed: false
}

const mergeData = [newSlug, ...currentArraySlug];

console.log(mergeData);

【讨论】：